Audit Login Failed Event Class

The Audit Login Failed event class indicates that a user tried to log in to Microsoft SQL Server and failed. Events in this class are fired by new connections or by connections that are reused from a connection pool.

Name of the client application that created the connection to an instance of SQL Server. This column is populated with the values passed by the application rather than the displayed name of the program.

10

Yes

ClientProcessID

int

ID assigned by the host computer to the process where the client application is running. This data column is populated if the client process ID is provided by the client.

9

Yes

DatabaseID

int

ID of the database specified by the USE database statement or the default database if no USE database statement has been issued for a given instance. SQL Server Profiler displays the name of the database if the ServerName data column is captured in the trace and the server is available. Determine the value for a database by using the DB_ID function.

3

Yes

DatabaseName

nvarchar

Name of the database in which the user statement is running.

35

Yes

Error

int

Error number of a given event. Often this is the error number stored in the sysmessages table.

31

Yes

EventClass

int

Type of event = 20.

27

No

EventSequence

int

The sequence of a given event within the request.

51

No

HostName

nvarchar

Name of the computer on which the client is running. This data column is populated if the host name is provided by the client. To determine the host name, use the HOST_NAME function.

8

Yes

IsSystem

int

Indicates whether the event occurred on a system process or a user process. 1 = system, 0 = user.

60

Yes

LoginName

nvarchar

Name of the login of the user (either SQL Server security login or the Windows login credentials in the form of DOMAIN\username).

11

Yes

NTDomainName

nvarchar

Windows domain to which the user belongs.

7

Yes

NTUserName

nvarchar

Windows user name.

6

Yes

RequestID

int

The ID of the request containing the statement.

49

Yes

ServerName

nvarchar

Name of the instance of SQL Server being traced.

26

No

SessionLoginName

nvarchar

Login name of the user who originated the session. For example, if you connect to SQL Server using Login1 and execute a statement as Login2, SessionLoginName shows Login1 and LoginName shows Login2. This column displays both SQL Server and Windows logins.